2201211009947 has 2 divisors, whose sum is σ = 2201211009948. Its totient is φ = 2201211009946.

The previous prime is 2201211009919. The next prime is 2201211009961. The reversal of 2201211009947 is 7499001121022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201211009947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201211009947.

It is not a weakly prime, because it can be changed into another prime (2201211909947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100605504973 + 1100605504974.

It is an arithmetic number, because the mean of its divisors is an integer number (1100605504974).

Almost surely, 2^{2201211009947} is an apocalyptic number.

2201211009947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201211009947 is an equidigital number, since it uses as much as digits as its factorization.

2201211009947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 2201211009947 in words is "two trillion, two hundred one billion, two hundred eleven million, nine thousand, nine hundred forty-seven".